There isn't really a right or wrong as long as it's sound and has readily available parts. All cars have different quirks but Spike,Stealth,DRC,Beast, Eagle,Boss and XXX all are quality cars with easily obtainable parts. Buzzard,Ellis and TCR are well built cars but I'm not aware of the availability of parts. Johnny has several Zero cars out there as well.

The car doesn't really matter as much as making sure it's assembled and maintained properly. If those things are done properly the driver can concentrate on learning how to drive.